Engine mounting



Feb. 3, 1942.

w. LYTLE ENGINE MOUNTING Filed April 4, 1941 Inventor A/AV/I/E Ayn;

Attorney Patentecl'li'eb. 3;

- zaiaue himcmn nonnme wa he -ri e imam. m s

Application April 4, 1941, Serial Ne. 386,905

zclsims. (chess-5) This invention .relates to improvements in mounting devices for supporting an aircraft engine upon the engine-carrying ring of the air-' craft; and'an object oi the invention is to eliminate, in connection with the securing of the engme to the supporting ring, the contact of metal against metal.

The invention, together with its obiects and advantageswill be best understood from a study ofthe following description taken in connection with the accompanying drawing wherein- Figure 1 is a partly schematic elevational view of a fragmentary portion of 'an engine-supporting frame and an engine supported thereby by mounts embodying the'features of the present invention.

Figure 2 is a sectional view through the mount,-

with a portion of the ring shown in elevation;

Figure 3 is an end elevational view of the gamut, with thesupporting ring shown in secion.

Figure 4 isa perspective view of a bushing forming part of the mount.

Referring moresin detail to the drawing, it will 'be seen that the numeral 5 indicates generally the engine-carrying or supporting ring which is of common-construction and supported by struts 6 extending from the'aeroplane frame; while the 2| extending for the full length of the body of. 'the bushing as a lateral re-entrance opening for the bore or through opening I9 to permit, in: an 1 obvious manner, ready disposition of thebushgrooves n to accommodate the slee ng bolts 14 as shown. t a v Also each mount 9 embodies a substantially cylindrical bushing ll thatis secured between the sections II and I2 of the clamp l0.

The body of the bushing l8 isprovided with a through opening 19 to accommodate the supporting ring 5, andis also provided with a slit ing "about the supporting ring 5, and removal of the bushing from about the ring with equal facility.

" It will thus'be seen that the bushing 18 serves to space theclamp members II and I2 from the supporting ring 5 and associated flanges or col- 4 1 hits a .with the result that there is no metal-tometal contact between the mounts 9 and the ring 5. l

Preferably the sections II and I2 of the clamp it of themount, and at opposite ends of the "clamp; are complementarily formed to provide reference numeral] indicates the fragmentarily shown portion of a conventional aeroplane engine. v v a In accordance with the present invention the ring 5 is provided, to a suitable number, with pairs of spaced flanges or collars 8 made integral with or otherwise positively secured on the ring 5 1 Between the collars or flanges 8 of each pair is secured a mount 9. The size of the ring 5 and the motor I will determine the number of mounts 9 to be employed.

Eachmount 9, in accordance with the present invention, embodies a clamp ll divided into a pair of complemental half-sections ll, l2 that embrace the ring 5 and at their meeting edges are provided with outstanding apertured lugs or ears l3 to accommodate the ends of substantially U-bolts N that serve tosecure the memhers I I and l 2 of the clamp in proper relative position. of suitablyi threaded to accommodate securing nuts l5, and the section I2 is provided on its ex-' terior with a lug formation It against which a portion of the engine block abuts or rests as shown in Figure 1.

Above and below the lug formation It, the

member 12 of the clamp ll is provided with Each of the bolts ll have the ends theresubstantially conical recesses H in which substantially conicalflanges 22 formed on the respective opposite ends of the bushing l8 seat, as shown to advantage in Figure 2.

Also the section l2 of the clamp, and in the region of the boss or lug formation I 6, is pro vided with an opening 23 to accommodate the head-eduippedend of the bolt or stud 24 that is engaged with the, usual stud on the engine I in a manner to secure the engine to the mounting. At the inner end of the bore or opening 23, the

clamp section I2 is counterbored as at 25 to accommodate the head 26 of the bolt or stud 24. Preferably the .head 26 is non-circular in cross section and the coun'terbore 25'will be of a corresponding shape so as to coact with the head 26 in preventing rotation of the studor bolt 2.4.

From the foregoing it will be seen that each {mounting '9 may be readily'engaged'and secured on the supporting ring 5; is held positively between the flanges or collarsv 8 against shifting movement circumferentially relative to the supring Stand that the mountings, and the use thereof, require very little departure from the ordinary construction of'engine-supporting ring,

. and no material alteration in the construction of the engine to be mounted on such supporting ring. v

The above and numerous other advantages of the invention together with the simplicity there 01, arebelievedsuch as to require-no further detailed description.

While I have: herein illustrated and described the preferred embodiment gt? the invention, it is, to be understoodthat- 1-. do at limit mysel'tf to;- the precise details ofconstruction,, combination and arrangement of elements as herein illustrated, but

claim all suchforms: or the invention to; which I provided with. laterally extending apertured ears,

U-bolts straddlingv one of the sections 0! ,the clamp: and having their respective opposite ends equipped with nuts and threaded through the apertures in the ears for securing the sections of the clamp together and a cylindrical resilient bush.- ing mountedin the bore of the clamp and slit longitudinally.

2. A mount for connecting an engine with an engine-supp r ing ring, said mount embodying an axially bored clamp divided longitudinally into sections, said sections at the joint therebetween provided with laterally extending, apertured ears,

U-bolts straddling one of the sections of. the clamp and having their respective opposite ends equipped with nuts and threaded. through the apertures in the ears for securing the. sections 01' the clamp together, and a cylindrical resilient bushing mounted in the bore 0! the clamp and slit longitudinally, and one ofv said clamp sections having an opening therethrough at right angles to the axis of. the clamp, and a stud. bolt extending outwardly from the clamp through said opens.

3.. A' mount for connecting an engine with an engine supporting ring, said mount embodying anaxially bored clamp divided longitudinally into sections, said sections-at the joint th'erehetween provided with laterally extending aperturedears, u bolts straddling one of the sections oi the clamp and having their respective opposite ends equipped with nuts and threaded through the apertures-in the ears for securing the sections of the clamp together, and a cylindrical resilient bushing mounted in the bore of the clamp and slit longitudinally, the bore 0! the clamp and the ends of said bushing having outwardly flared ends fitting together to prevent relative slipping of said clamp and bushing.

- v WAYNE LY'I'LE. 

